EXPLANATION OF PLATES OF VOL. III. 



443 



XLII. Fig. 1. Zonites demissus. 

 Fig. 2. Mesodon jejuna. 

 Fig. 3. Stenotrema hirsutum. 

 Fig. 4. stenotrema. 



XLIII. Pomatia Buffoniana : a Mexican species omitted from this volume. 



Vol. II. 

 XLIV. Fig. 1. Stenotrema spinosum. 



Fig. 2. Edgarianum. 



XLV. Fig. 1. Polygyra Texasiana. 

 Fig. 2, 3. Triodopsis inflecta. 

 XLVI. Hemitrochus varians, var. f, 17, 6. u 



See 



